Method of making rims and clamps



June 22 1926.

J. WAGENHORST METHOD MAKING RIMS AND GLAMPS Patented June 22, 192s.

UNITED STATES PATENT iOFFICE.-

:rmns n.- wacmnonsfr, on Jackson, meurent MET-HOD OF INIA-KING` RIMS AND CLAMPS.

appuation nledfianuary 2o, 192s. serial ha. 613,835.

component parts and combine themA in suchmanner as to produce a rim fastening means safely and securelv connected thereto, capable of resisting Vall the strains and stresses to which Said rim and fastening means may be subjected. Y,

Another object of the invention is to provide a quick and simple method of making the 'clampsattached to the demountable tire carrying rim.

With these various objects in view, and certain others which will later appear, the invention consists in the various steps hereinafter fully described and set forth in the appended claims.

In the drawlngs forming a part of this specification, Fig. 1 is a view of a tire carrying Arim constructed in accordance with my invention, said rim being shown applied to a fixed rim of the channel sheet metal type; Fig. 2 is a detail .perspective view of a portion oli a bar from which a plurality of the clamps are made; Fig. 3 is a detail perspective view of one of the clamps beforebeing attached; Fig. 4 is a view of saidclamp taken from the 'oppositeI side; Fig. 5 isa side elevation of the clamp; m Fig. 6 is a side elevation of a bar, such as Villustrated in Fig. 2 and showing the manner of cutting a plurality of clamps and boring the same; Fig. 7 is a top plan view of a bar after the Second operation has been performed thereon showing the manner o f bifurcating a plurality of clamps; Fig. 8 is an inverted plan view of a portion of the rim base; Fig. 9 is a sectional perspective showing the manner of connecting the clamp to the tire carrying rim.

In carrying out my invention, I first roll a demountable'tire carrying rim which may be of the clencheror Stralght slde type as preferred, Athis rim being Shaped into a iii) devoid of either inrolled true circle and Sized to fit a definite Size of wheel body.

` This rim A is preferably formed withan` inrolled bead A', but instead of the` inrolled bead there may be an inwardly extending 'rib or the rim base maybe flat; that is bead or inwardly projecting rib.

The demountabletire carrying rim A has` a serles of clamps B permanent i y connected.- thereto and this invention pertams particularly to the method of making the clamps and:A also the method of connecting said clamps to the rim base.

Each clamp is substantially right angular in shape, one leg thereof being secured in engagement with the base of the rim, while the other leg.: thereof projects inwardly and is apertured to receive the fastening bolt, and each clamp 'when completed, is preferably provided with outwardly projecting lugs B which Serve as rivets for the attachment of the clamp to the rim base. The

rim base has a series of openings C' punched thereinA adjacent the outer side and when an inrolled `bead .is formed in the base of the rim, these openings Cv are produced in the inrolledbead and when an inwardly projecting rib is provided, these openings are produced in said rib and when a fiatA base rim is made, these openings C are produced in the base at substantially the same int as l occupied by the inwardly projecting ad or rib, and in case each clamp is provided with two outwardly lprojecting lugs, the openings will be made so spaced apart as, to receive said outwardly projecting lugs.

The finishedv clamps are placed in engagement with the rim base, or'at least one member thereof isso laced and the outwardly projecting lugs pass through the lopenings or apertures C and these outward- '1y projecting lugs are then headed down or riveted as most clearly shown in Fig.V 9', thereby rigidly and securely fastening the clamp to the tire carrying rim.

The inwardly projecting portion B2 of the clamp is formed with a bolt hole l?)8 which; is counterbor'ed as Shown at B* and Ain praci tice I prefer to bifurcate the lug carrying member of the clamp, as shown'at'B soA as to provide spaced engaging members B.

v According tov my improved method the `clamps are preferably constructed from a bar or hot rolled section D shown in Fig. 2, said bar-being substantially right angular in `shape and one member thereof provided with an outstanding rib, the outer face of which maybe grooved if desired. Thisbar D is rst operated upon to bore the holes, countersink them, and cut the contour of the inwardly projecting portion of the` clamp. TheA bar isthen turned over kand bifurcations B's made therein and the clamps cut apart and' after the edges of -the engaging members B are given the proper shape and rounded off, the clamp is ready to be attached to the tire carrying rim, the base of which' has been previously punched to receive the outwardly projecting lugs B which, as before stated, are headed or riveted down, thereby permanently and securely connecting the clamp-to the rim. Y

It will be noted that when the rim is 'formed with an inrolled bead that the rivetingv of the lug Bvtakes place in this inrolled bead. Instead of shaping up the lugs from the bar as previously described, the bar could be subdivided and then the sections thereof bored, bifurcated and shaped to provide the finished clamp.

It will thus be seen that I provide a novel method of making the fastening clamps and also attach them to the rim in a novel manner in order toI provide the desired construction of demountabletire carrying rim with fastening means.

When a flat rim base is employed" and to which theclamps are to be attached I preferably provide at the points of attachment the equivalent of an inrolled bead for a distance equal to the width of the clamp and this inrolled or inwardly projecting portion is apertured to receivethe outwardly projecting lugs exactly the same as the inrolled bead is apertured and these outwardly projecting lugs are riveted or upset in the inrolled portion exactly the same as in the inrolled bead, this inrolled pbead or portion servingas a countersink lto receive the riveted or upset portions of the upwardly projecting lugs.

Having thus described my invention, what I claim is:

1. The herein describedmethod of mal:- ing rim clamps which consists of rolling an angled bar having an outstanding rib upon,

one. member thereof, then .boring a plurality of bolt holes in one member of said bar, bifurcating the other member, vand finally separating the bar into individual clamps.'

2. `Thc'herein described method of making rim clamps which consists -in rolling an anb gular bar with an outstanding rib on one member thereof, producing bolt holes in the other member at definite spacedvpoints, producing a series of spaced lugs from the outliolt hole in one member and one or more outstanding lugs in the other member.

3. The herein described method which consists in providing a circular rim base, punching apertures in the base thereof at predetermined points and near one side thereof, providing apertured clamps .having outwardly projecting lugs, arranging said -clamps in juxtaposition with the inner face of the rim base and passing the lugs through said rim base apertures; and then permanently connecting the clamps to the rim base by riveting or ,upsetting the outwardly projecting lugs into the rim base.

4. The herein described method which consists in providing a circular tire carrying rim and punching apertures in the base thereof at definite points and near one side thereof, roviding an angular bar having an outward y projecting rib on one member thereof, aperturing one member of said bar at denite points, punching out portions of the'other member of said bar and then severing said bar at definite points so as to provide a plurality ,of angular clamps, one

member of which is apertured and the other i bored aperture in one member and a plurality of outwardly projecting lugs on the other member, arranging said clamps in contact with the rim base and passing the outwardly projecting lugs through the rim base holes and then permanently connecting the clamps to thel rim base by riveting or upsetting the lugs in the rim base.

6s The herein described method which consists in providing a tire carrying rim having an inrolled bead and punching apertures in said bead at predetermined points, providing a plurality ofangular clamps each having a bored aperture in one member and one or more outwardly projecting lugs on thg other member, arranging said clam s in contact with the rim base and passing t e outwardly projecting lugs through the openings in the bead vandthen permanently connecting the clamps to the rim base-by riveting or upsetting the lugs in said inrolled 7 VThe herein described method whic consists in providing a tire carrying rim having an inrolled bead and punching apertures in said bead/ at predetermined points,

standing rib, and then cutting the bar into a providing a plurality of angular clamps each 13 plurality of separate clamps, each having a.

having a bored aperture'in one member and one or more outwardly projecting lugs on bead, said inrolledvbead serving as a. counterthe other member, arranging said clamps in sink to receive the riveted or upset portion contact with the rim base and assing the of the outwardly projecting lugs.

outwardl project' lugs throng the open- In testimony whereof, I ereunto aix my 5 ings in t e -bead an then permanently con- 'signatura necting the clamps to the rim base by riveti ing or upsetting the luga in said mrolled 4 JAMES H. WAGENHORST. 

